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Die große Enzyklopädie des mechanischen Rechnens

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Patent:US2797047


Patent:US 2797047
Title:Calculator
Date:25.06.1957
Place:
Country:USA
Person:Lehre, Otto (P)
Company:Sterling Plastics (P)
Internal Links:Sterling Dial-A-Matic IBM Hexadecimal Adder, Nichtdezimale Rechner, Scheibenaddierer, Sedezimalsystem
Keywords:
Link to the patent office:
(without guarantee)
 US2797047 (espacenet),  US2797047 (uspto)


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